1.x/x-6 = x-2/x-3 2.2x/2x+5 + 5/5x-2 = 1

熱心網友

1。x^2-3x=x^2-8x+12 5x=12 x=12/5 經檢驗,是原方程的解2。2x(5x-2)=(2x+5)(5x-7) 10x^2-4x=10x^2-14x+25x-35 15x=35 x=7/3經檢驗,是原方程的解

熱心網友

1.(x-2)(x-6)=x(x-3) x*x-8x+12=x*x-3x 5x=12 x=12/52.2x(5x-2)+5(2x+5)=(2x+5)(5x-2) 10x*x-4x+10x+25=10x*x+25x-4x-10 6x+25=21x-10 15x=35 x=7/3